Home Web Front-end JS Tutorial How to operate vue for data transfer

How to operate vue for data transfer

Jun 07, 2018 am 11:22 AM
vue data transfer

This time I will show you how to operate vue for data transfer, and what are the precautions for operating vue for data transfer. The following is a practical case, let's take a look.

Component is the most powerful feature of Vue.js. Components can encapsulate reusable code and realize component reuse by passing in different objects. However, component value transfer becomes a problem that needs to be solved.

1. Parent component passes value to child component

The scope of a component instance is isolated. This means that the parent component's data cannot be referenced directly within the child component's template. To make the child component use the data of the parent component, we need to pass the props option of the child component.

Sub component:

子组件需要从父组件获取 logo 的值,就需要使用 props: ['logo']

If a sub component needs to get the value of the logo from the parent component, it needs to use props: ['logo']

How to operate vue for data transfer

Parent component:

How to operate vue for data transfer

2. Child component passes value to parent component

Subcomponents mainly pass data to parent components through events.

Subcomponent:

How to operate vue for data transferHow to operate vue for data transfer

where transferUser is a custom event, and this.username will be passed to the parent component through this event.

Parent component:

How to operate vue for data transferHow to operate vue for data transfer

The parameter msg in the getUser method is the parameter username passed from the child component

3. Route value passing

How to operate vue for data transferHow to operate vue for data transfer

When used, value is assigned in the created life cycle.

How to operate vue for data transfer

4. Store data through localStorage or sessionStorage

How to operate vue for data transfer

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

Recommended reading:

How to deal with flickering when v-cloak is loaded in vue

How to operate Vue to make a proxy

The above is the detailed content of How to operate vue for data transfer. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

How to use bootstrap in vue How to use bootstrap in vue Apr 07, 2025 pm 11:33 PM

Using Bootstrap in Vue.js is divided into five steps: Install Bootstrap. Import Bootstrap in main.js. Use the Bootstrap component directly in the template. Optional: Custom style. Optional: Use plug-ins.

How to add functions to buttons for vue How to add functions to buttons for vue Apr 08, 2025 am 08:51 AM

You can add a function to the Vue button by binding the button in the HTML template to a method. Define the method and write function logic in the Vue instance.

How to use watch in vue How to use watch in vue Apr 07, 2025 pm 11:36 PM

The watch option in Vue.js allows developers to listen for changes in specific data. When the data changes, watch triggers a callback function to perform update views or other tasks. Its configuration options include immediate, which specifies whether to execute a callback immediately, and deep, which specifies whether to recursively listen to changes to objects or arrays.

What does vue multi-page development mean? What does vue multi-page development mean? Apr 07, 2025 pm 11:57 PM

Vue multi-page development is a way to build applications using the Vue.js framework, where the application is divided into separate pages: Code Maintenance: Splitting the application into multiple pages can make the code easier to manage and maintain. Modularity: Each page can be used as a separate module for easy reuse and replacement. Simple routing: Navigation between pages can be managed through simple routing configuration. SEO Optimization: Each page has its own URL, which helps SEO.

How to reference js file with vue.js How to reference js file with vue.js Apr 07, 2025 pm 11:27 PM

There are three ways to refer to JS files in Vue.js: directly specify the path using the <script> tag;; dynamic import using the mounted() lifecycle hook; and importing through the Vuex state management library.

How to return to previous page by vue How to return to previous page by vue Apr 07, 2025 pm 11:30 PM

Vue.js has four methods to return to the previous page: $router.go(-1)$router.back() uses <router-link to="/" component window.history.back(), and the method selection depends on the scene.

How to use vue traversal How to use vue traversal Apr 07, 2025 pm 11:48 PM

There are three common methods for Vue.js to traverse arrays and objects: the v-for directive is used to traverse each element and render templates; the v-bind directive can be used with v-for to dynamically set attribute values ​​for each element; and the .map method can convert array elements into new arrays.

How to jump to the div of vue How to jump to the div of vue Apr 08, 2025 am 09:18 AM

There are two ways to jump div elements in Vue: use Vue Router and add router-link component. Add the @click event listener and call this.$router.push() method to jump.

See all articles